Acetate jiid, sidoo kale loo yaqaan cellulose acetate jiidashada, waa shay muhiim ah oo si weyn loogu isticmaalo soo saarista filtarrada sigaarka iyo waxyaabaha kale ee tubaakada. Waxa lagu gartaa module-keeda curyaanka sare, kaas oo hubinaya in uu si fiican u hayo qaabkiisa iyo qaab-dhismeedkiisa inta lagu jiro farsamaynta. Halkan waxaa ah hage faahfaahsan oo ku saabsan sida loo sameeyo jiidashada acetate, tilmaamaya tallaabo kasta oo ku lug leh habka wax soo saarka.
1. Diyaarinta Qalabka Ceyriinka
Maaddada asaasiga ah ee loogu talagalay samaynta jiidashada acetate waa cellulose, sida caadiga ah laga soo qaatay ilaha sida suufka, bamboo, qoryo, ama warqad dib loo warshadeeyay. Tallaabada ugu horreysa waxay ku lug leedahay nadiifinta alaabtan ceeriin si fiican si looga saaro wixii wasakh ah. Marka la nadiifiyo, Alaabta waxaa loo qaybiyaa qaybo yaryar ama fiilooyinka si loo fududeeyo habka xiga.
2. Daaweynta Kiimikada
Cellulose-ka la diyaariyey wuxuu maraa habka daaweynta kiimikaad ee loo yaqaan hydrolysis acid ama hydrolysis alkaline.
- Acid Hydrolysis: Habkan, cellulose waxaa lagu daraa sulfuric acid ama xal kale oo acidic ah. Heerkul sare iyo cadaadis, qaab dhismeedka cellulose waa la bedelay, kor u qaadida daahirnimadeeda.
- Hydrolysis alkaline: Haddii kale, cellulose waxaa lagu qasi karaa xal alkaline ah, Kaas oo u beddela Ester-ka fiber-ka iyada oo loo marayo falcelin kiimiko oo taxane ah.
Labada habba waxay keenaan samaynta acetate cellulose, dhexda muhiimka ah ee soo saarista jilitaanka acetate.
3. Fuuqbaxa iyo Esterification
Ka dib daaweynta kiimikada, ah cellulose acetate wuu fuuqbaxay si uu meesha uga saaro qoyaanka hadhay. Xiga, waxay la martaa falcelin esterification leh anhydrides acid, soo saarida cellulose acetate ester, kaas oo ku milma dareerayaasha organic.
4. Uumi-baxa dareeraha ah iyo Crystallization
Ester-ka cellulose acetate ayaa markaa lagu milmay dareere organic. Iyada oo uumi baxa, dareeraha waa la saaraa, taasoo keenaysa in acetate ester-ka cellulose uu soo da'o oo uu qariyo. Maaddadan crystalline waa waxa loo yaqaan jiidista acetate.
5. Qalajinta iyo habaynta
Jiidashada acetate ee degdega ah waa la qalajiyey si loo gaaro qoyaanka ugu fiican. Marka la qalajiyo, waxa ay maraysaa tillaabo habayneed oo dheeraad ah, oo ay ku jirto aan leexleexan, goyn, wareegaysa, iyo tolnimada, si loogu beddelo badeecadda ugu dambeysa. Tallaabooyinkani waxay xaqiijinayaan in jilitaanka acetate uu leeyahay sifooyinka jireed ee la doonayo oo uu diyaar u yahay isticmaalka codsiyada kala duwan.
6. Farsamooyinka Waxsoosaarka Sare
Si kor loogu qaado tayada iyo waxqabadka acetate tow, wax-soo-saarayaashu waxay inta badan adeegsadaan farsamooyin wax-soo-saar horumarsan. Tusaale ahaan, ilaalinta maaddo gaar ah oo acetone ah iyo heerkul inta lagu jiro habka qallafsanaantu waxay si weyn u wanaajin kartaa modules-ka-jilicsan ee jiidista acetate, taasoo ka dhigaysa mid ku habboon in loo isticmaalo codsiyada cadaadiska sarreeya sida miirayaasha tubaakada.
7. Xakamaynta Tayada iyo Baakaynta
Ka hor inta aan loo rarin si loogu isticmaalo, jiidashada acetate ee dhammaatay waxay maraysaa tijaabinta xakamaynta tayada adag si loo hubiyo inay la kulanto heerarka warshadaha. Tan waxaa ka mid ah hubinta wasakhda, xoogga fiber, iyo modules curyaan ah. Marka la xaqiijiyo, jiidashada acetate waa dhaawac, la kormeeray, loona baakadeeyay qaybinta.
Gabagabo
Samaynta jiitaan acetate waxay ku lug leedahay tillaabooyin taxadar leh oo taxane ah, laga bilaabo diyaarinta alaabta ceeriin ilaa daaweynta kiimikada, fuuqbax, esterification, uumiga dareere, crystallization, qalajin, farsamaynta, iyo ilaalinta tayada. Tallaabo kastaa waxay muhiim u tahay hubinta soo saarista tow acetate tayo sare leh oo buuxinaysa baahiyaha warshado kala duwan. Iyadoo horumar laga sameeyay farsamooyinka wax soo saarka, habka wax-soo-saarku wuu sii socdaa, hagaajinta waxtarka iyo tayada alaabta.
Adigoo raacaya hagahan, wax-soo-saarayaashu waxay soo saari karaan tow acetate oo aan ahayn oo kaliya waara oo waxtar leh laakiin sidoo kale buuxiya shuruudaha adag ee hababka wax soo saarka casriga ah.
